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6 dic 1826 anni - 1766-1844 John Dalton

Descrizione:

Atomic theory--
1. All is made of atoms
2. Atoms in a given element are identical
3. Atoms combine in whole # ratios
4. Atoms aren't created or destroyed

Aggiunto al nastro di tempo:

1 mag 2018
0
0
1900

Data:

6 dic 1826 anni
Adesso
~ 199 years ago